Home / 628,609.41-867,480.94-342,131.55

Finding the Fourth Proportional to 628,609.41, 867,480.94 and 342,131.55

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Solution

The fourth proportional to 628,609.41, 867,480.94 and 342,131.55 is: 472,141.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,609.41 : 867,480.94 = 342,131.55 : x
  2. Step 2: Convert to fraction form
    628,609.41/867,480.94 = 342,131.55/x
  3. Step 3: Cross multiply
    628,609.41x = 867,480.94 × 342,131.55
  4. Step 4: Simplify right side
    628,609.41x = 296,792,595,772.27
  5. Step 5: Solve for x
    x = 296,792,595,772.27/628,609.41
  6. Step 6: Final answer
    x = 472,141.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.